3.0 Amps Maximum per Phase : Max 42 volts
1/1, 1/2, 1/4, 1/8, and 1/16 Microstepping
XYLOTEX = Plug-n-Play BiPolar
2.5 Amps per Phase : Max 35 Volts
1/1, 1/2, 1/4, 1/8 stepping choices
You'll find fans for both units here. I am a lotta thumbs and didn't want to have to deal with a kit.
Have had good service from Xylotex.
Welcome aboard Jim